CN206236469U - High pressure extrudes lead sheath power cable - Google Patents
High pressure extrudes lead sheath power cable Download PDFInfo
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- CN206236469U CN206236469U CN201621029406.3U CN201621029406U CN206236469U CN 206236469 U CN206236469 U CN 206236469U CN 201621029406 U CN201621029406 U CN 201621029406U CN 206236469 U CN206236469 U CN 206236469U
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- lead sheath
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- conductor
- power cable
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Abstract
The utility model discloses a kind of high pressure lead sheath power cable is extruded to be intended to overcome big specification cable asphalt coating quality of the prior art poor, apply it is uneven, the problems such as easily there is holiday.It includes conductor, and conductor outside is enclosed with conductor shielding layer, insulating barrier, insulation screen, semi-conductive buffer water blocking layer, shielding layer of copper wires and lead sheath layer successively.Lead sheath layer outside is also enclosed with anticorrosive coat, nonmetallic sheath and conductive layer successively.Screen layer outside is additionally provided with the lapping layer that blocks water.The utility model improves the block-water performance of protective metal shell, reduces cable overall dimensions, reduces thermal resistivity.
Description
Technical field
The present invention relates to technical field of cable, lead sheath power cable is extruded more particularly, to a kind of high pressure.
Background technology
The metal sheath of conventional metals jacket structure power cable is by welding ripple aluminium sheath or extrudes ripple aluminium sheath knot
Structure, the structural cable are because material and technical reason, and cable water-resisting ability is weaker, easy when being run in water environment for a long time
Generation cable infiltration accident, causes circuit breakdown fault.Because traditional structure metal sheathed cable uses ripple constructed of aluminium, thermal resistance
Coefficient is big, and cable radiating efficiency is low, unfavorable to cable miniaturization and current capacity.Lead sheath structure power cable is extruded due to lead
Densification, allow cable long-term safe operation in water environment, lead sheath is in close contact with internal layer, and thermal resistivity shows
Writing reduces, and improves cable current capacity.Current traditional structure forms power cable, protective metal shell uses corrugated aluminium jacket structure,
In the case of same conductor section, cable profile size is big, and current capacity is low, is unsuitable for being run for a long time in water environment.
Utility model content
The utility model is to overcome the above-mentioned deficiency of cable of the prior art, there is provided a kind of raising protective metal shell
Block-water performance, reduces cable overall dimensions, reduces thermal resistivity, and the high pressure that improve the heat-sinking capability of cable extrudes lead sheath
Power cable.
To achieve the above object, the utility model uses following technical scheme：
A kind of high pressure of the present utility model extrudes lead sheath power cable, including conductor, and conductor outside is enclosed with successively leads
Body shielding layer, insulating barrier, insulation screen, semi-conductive buffer water blocking layer, shielding layer of copper wires and lead sheath layer.
Preferably, lead sheath layer outside is also enclosed with anticorrosive coat, nonmetallic sheath and conductive layer successively.
Preferably, screen layer outside is additionally provided with the lapping layer that blocks water.
Compared with conventional conductor structure power cable technology, the application structure generation process, manufacturing technology are easily realized, are squeezed
Gold filled category sheath power cable reduces cable because the difference of protective metal shell structure, improves the block-water performance of protective metal shell
Overall dimensions, reduce thermal resistivity, improve the heat-sinking capability of cable, so in the case of same uiform section, can be effective
Improve the current capacity of cable.And cable is possessed excellent block-water performance.It is suitable to long-term safe operation in water environment.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present utility model.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and detailed description.
A kind of high pressure of the present utility model extrudes lead sheath power cable, including conductor 1, and conductor outside is enclosed with successively leads
Body shielding layer 2, insulating barrier 3, insulation screen 4, semi-conductive buffer water blocking layer 5, shielding layer of copper wires 6 and lead sheath layer 8.Lead sheath
Layer outside is also enclosed with anticorrosive coat 9, nonmetallic sheath 10 and conductive layer 11 successively.Screen layer outside is additionally provided with the lapping layer that blocks water
7。
Conductor single line is successively stranded in circular central monofilament outer layer, or uses milliken conductor structure, conductor outer wrapped half
Electroconductive nylon band, it is three-layer co-extruded then to carry out conductor shield, insulating barrier, three layers of insulation screen, after insulated wire cores degassing
Insulation screen outer wrapped semiconductor waterstop processing technology, so far production technology and the traditional structure complete phase of high-tension cable cable
Together, then dredged around shielding layer of copper wires outside water blocking layer, while wrapped waterstop.When protective metal shell operation is carried out, with extruding lead
Jacket structure substitute corrugated aluminium jacket structure, in extrusion process, lead pig by high temperature melting, by Screw Extrusion, by molten state lead
Metal is fed forward to former, when metal sheath extrusion molding is by mould, by water cooling, by lead sheath temperature
Degree is down to safe temperature, forms a layer thickness uniformly, and fine and close metal sheath, bag is attached to core surface.After having produced lead sheath
Core completed after bitumen coating and nonmetallic oversheath are extruded.
Compared with conventional conductor structure power cable technology, the application structure generation process, manufacturing technology are easily realized, are squeezed
Gold filled category sheath power cable reduces cable because the difference of protective metal shell structure, improves the block-water performance of protective metal shell
Overall dimensions, reduce thermal resistivity, improve the heat-sinking capability of cable, so in the case of same uiform section, can be effective
Improve the current capacity of cable.And cable is possessed excellent block-water performance.It is suitable to long-term safe operation in water environment.
Claims (3)
1. a kind of high pressure extrudes lead sheath power cable, including conductor, it is characterized in that, conductor outside is enclosed with conductor masking successively
Layer, insulating barrier, insulation screen, semi-conductive buffer water blocking layer, shielding layer of copper wires and lead sheath layer.
2. high pressure according to claim 1 extrudes lead sheath power cable, it is characterized in that, lead sheath layer outside is also wrapped successively
It is wrapped with anticorrosive coat, nonmetallic sheath and conductive layer.
3. high pressure according to claim 1 extrudes lead sheath power cable, it is characterized in that, described shielding layer of copper wires outside
It is additionally provided with the lapping layer that blocks water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621029406.3U CN206236469U (en) | 2016-08-31 | 2016-08-31 | High pressure extrudes lead sheath power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621029406.3U CN206236469U (en) | 2016-08-31 | 2016-08-31 | High pressure extrudes lead sheath power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206236469U true CN206236469U (en) | 2017-06-09 |
Family
ID=58986313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621029406.3U Active CN206236469U (en) | 2016-08-31 | 2016-08-31 | High pressure extrudes lead sheath power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206236469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091452A (en) * | 2017-12-11 | 2018-05-29 | 杭州电缆股份有限公司 | High voltage power cable extrudes lead sheath and non metallic sheath continuous producing method |
-
2016
- 2016-08-31 CN CN201621029406.3U patent/CN206236469U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091452A (en) * | 2017-12-11 | 2018-05-29 | 杭州电缆股份有限公司 | High voltage power cable extrudes lead sheath and non metallic sheath continuous producing method |
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